266888 has 16 divisors (see below), whose sum is σ = 508380. Its totient is φ = 131328.

The previous prime is 266867. The next prime is 266891. The reversal of 266888 is 888662.

266888 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 252004 + 14884 = 502^2 + 122^2 .

It is a d-powerful number, because it can be written as 2¹⁸ + 6² + 8² + 6² + 8³ + 8⁴ .

It is a plaindrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 266888.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356 + ... + 812.

2²⁶⁶⁸⁸⁸ is an apocalyptic number.

It is an amenable number.

266888 is a deficient number, since it is larger than the sum of its proper divisors (241492).

266888 is a wasteful number, since it uses less digits than its factorization.

266888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536 (or 532 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 266888 is about 516.6120401230. The cubic root of 266888 is about 64.3837619644.

The spelling of 266888 in words is "two hundred sixty-six thousand, eight hundred eighty-eight".